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NEET 2018
Exam
NEET
Year
2018
Subject
Zoology
Chapter
Digestion and Absorption

NEET 2018 · Zoology · Digestion and Absorption

Which of the following terms describe human dentition?

Which of the following terms describe human dentition?

Options

  1. APleurodont, Monophydont, Homodont
  2. BThecodont, Diphyodont, Heterodont
  3. CThecodont, Diphyodont, Homodont
  4. DPleurodont, Diphyodont, Heterodont

Correct answer

B. Thecodont, Diphyodont, Heterodont

Step-by-step solution

Human dentition is thecodont, diphyodont and heterodont. In humans, two types of teeth are found: milk or deciduous teeth and permanent teeth. Thus, they have diphyodont teeth. The teeth are thecodont, i.e. they remain embedded in the sockets of the jaw bones. Men have four types of teeth; incisors, canines, premolars and molars, i.e., heterodont teeth.

Pleurodont teeth refers to the dentition where teeth are fused to the inner edge of the jawbone. This type of dentition is normally found in reptiles.
Homodont refers to only one or similar type of teeth. It is found in porpoise.

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